From The Grey House:
Charlie looked around. He was in the Embarcadero. The California St. Cable Car line was two blocks off; Charlie glanced at his watch, and at this hour would still be running. He shrugged and started toward the trolley, which took him to the Hyde St. Cable Car line. That one took him a few blocks from his car. He took his time driving home, mulling over the night’s fiasco. He knew he was not out of the woods. He had betrayed Vincent, who didn’t look kindly upon betrayers. Everyone who worked for Vincent knew of the oubliette. Charlie hoped he wouldn’t end up there.